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KCET2022PhysicsAtomic Physics

If an electron is revolving in its Bohr orbit having Bohr radius of 0.529 Å , then the radius of third orbit is

Options

  1. A4496 Å
  2. B4.761 Å
  3. C5125 ~nm
  4. D4234 ~nm

Correct answer

B. 4.761 Å

Step-by-step solution

Given, Bohr radius, r₁=0.529 Å We know that, radius of revolving electron in n th orbit is given as r n^2 array ll & r₁= ( array l n₁ n₂ array )^2 & r₁ r₂ = ( 1 3 )^2= 1 9 [ n₁=1 and n₂=3 ] & r₂=9 r₁=9 0.529=4.761 Å array

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